Why do I see the message “OpenId endpoint not found” when I try to log in?

If you're receiving this message, please follow these steps:

Try logging into your OpenID provider directly. Usually if you cannot log in on the site itself, then you will be unable to log into Stack Exchange. (If you're using a Google account, log into Google. If you're using a Verisign account, log into Verisign.)

When you have successfully managed to log into your provider, please try logging in on Stack Exchange again.

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If you cannot log into your OpenID provider, or if you know your provider has ceased supporting an OpenID, please create a new account and then contact us to request an account merge.